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Fuji Electric Europe GmbH
1. Safety information
Wiring
• When wiring the inverter to the power supply, insert a recommended moulded case circuit breaker (MCCB) or
residual-current-operated protective device (RCD)/earth leakage circuit breaker (ELCB) (with overcurrent protection)
in the path of power lines. Use the devices within the recommended current range.
• Use wires of the specified size.
• When wiring the inverter to the power supply that is 500 kVA or more, be sure to connect an optional DC reactor
(DCR).
Otherwise, fire could occur.
• Do not use one multicore cable in order to connect several inverters with motors.
• Do not connect a surge killer to the inverter's output (secondary) circuit.
Doing so could cause fire.
• Ground the inverter in compliance with the national or local electric code.
Otherwise, electric shock could occur.
• Qualified electricians should carry out wiring.
• Disconnect power before wiring.
Otherwise, electric shock could occur.
• Install inverter before wiring.
Otherwise, electric shock or injuries could occur.
• Ensure that the number of input phases and the rated voltage of the product match the number of phases and the
voltage of the AC power supply to which the product is to be connected.
Otherwise fire or an accident could occur.
• Do not connect the power supply wires to output terminals (U, V, and W).
• Do not insert a braking resistor between terminals P (+) and N (-), P1 and N (-), P (+) and P1, DB and N (-), or P1 and
DB.
Doing so could cause fire or an accident.
• Generally, control signal wires are not reinforced insulation. If they accidentally touch any of live parts in the main
circuit, their insulation coat may break for any reasons. In such a case, ensure the signal control wire is protected from
making contact with any high voltage cables.
Doing so could cause an accident or electric shock.
• Connect the three-phase motor to terminals U, V, and W of the inverter.
Otherwise injuries could occur.
• The inverter, motor and wiring generate electric noise. Ensure preventative measures are taken to protect sensors and
sensitive devices from RF noise.
Otherwise an accident could occur.
Operation
• Be sure to install the terminal cover before turning the power ON. Do not remove the covers while power is applied.
Otherwise electric shock could occur.
• Do not operate switches with wet hands.
Doing so could cause electric shock.
• If the auto-reset function has been selected, the inverter may automatically restart and drive the motor depending on
the cause of tripping.
(Design the machinery or equipment so that human safety is ensured after restarting.)
• If the stall prevention function (current limiter), automatic deceleration, and overload prevention control have been
selected, the inverter may operate at an acceleration/deceleration time or frequency different from the commanded
ones. Design the machine so that safety is ensured even in such cases.
Otherwise an accident could occur.
• If an alarm reset is made with the Run command signal turned ON, the inverter may start immediately. Ensure that the
Run command signal is turned OFF in advance.
Otherwise an accident could occur.
• Ensure you have read and understood the manual before programming the inverter, incorrect parameter settings may
cause damage to the motor or machinery.
An accident or injuries could occur.
• Do not touch the inverter terminals while the power is applied to the inverter even if the inverter is in stop mode.
Doing so could cause electric shock.
